Patent US3059352A successfully refreshed from Google Patents.
Patent US3143378A successfully refreshed from Google Patents.
US3143378A
Expired / Lapsed
US
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Gathering device
Assignee: Unisys Corp
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Filing: 1962-05-31
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Granted: 1964-08-04
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 William E James
- 👤 Daniel C Heitshu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:06
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/16; A01F25/20; A01F25/2009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN IMPROVEMENT IN A SILO UNLOADER POSITIONABLE WITHIN A VERTICALLY EXTENDING SILO FOR TRAVEL AROUND THE SILO AXIS AND HAVING MEANS FOR REMOVING MATERIAL FROM THE TOP SURFACE OF A COLUMN OF ENSILAGE THEREIN AND FOR CONVEYING SUCH MATERIAL TOWARD SAID AXIS TO MEANS WHICH DISCHARGES THE MATERIAL FROM THE SILO, THE IMPROVEMENT RESIDING IN SAID REMOVING AND CONVEYING MEANS AND COMPRISING, IN COMBINATION, A PAIR OF RADIALLY EXTENDING AUGERS LOCATED ONE DIRECTLY IN FRONT OF THE OTHER RELATIVE TO THE TRAVEL OF THE UNLOADER, SAID AUGERS HAVING FLIGHTS ENGAGEABLE WITH SAID ENSILAGE TOP SURFACE AND COOPERATIVE TO DELIVER MATERIAL BETWEEN THE AUGERS AND TOWARD SAID DISCHARGE MEANS, AND POWER MEANS ROTATING SAID ONE AUGER AT A GIVEN SPEED AND SAID OTHER AUGER AT A DIFFERENT SPEED WHEREBY THERE IS RELATIVE AXIAL MOVEMENT OF THE FLIGHTS OF THE RESPECTIVE AUGERS AND THE MATERIAL CONVEYED IS SUBJECTED TO A SHREDDING ACTION AS IT IS CONVEYED.
Claim 2
Dependent Claim
154 words
AN IMPROVEMENT IN A SILO UNLOADER POSITIONABLE WITHIN A VERTICALLY EXTENDING SILO FOR TRAVEL AROUND THE SILO AXIS AND HAVING MEANS FOR REMOVING MATERIAL FROM THE TOP SURFACE OF A COLUMN OF ENSILAGE THEREIN AND FOR CONVEYING SUCH MATERIAL TOWARD SAID AXIS TO MEANS WHICH DISCHARGES THE MATERIAL FROM THE SILO, THE IMPROVEMENT RESIDING IN SAID REMOVING AND CONVEYING MEANS AND COMPRISING, IN COMBINATION, A PAIR OF RADIALLY EXTENDING AUGERS LOCATED ONE DIRECTLY IN FRONT OF THE OTHER RELATIVE TO THE TRAVEL OF THE UNLOADER, SAID AUGERS HAVING FLIGHTS ENGAGEABLE WITH SAID ENSILAGE TOP SURFACE AND COOPERATIVE TO DELIVER MATERIAL BETWEEN THE AUGERS AND TOWARD SAID DISCHARGE MEANS, AND POWER MEANS ROTATING SAID ONE AUGER AT A GIVEN SPEED AND SAID OTHER AUGER AT A DIFFERENT SPEED WHEREBY THERE IS RELATIVE AXIAL MOVEMENT OF THE FLIGHTS OF THE RESPECTIVE AUGERS AND THE MATERIAL CONVEYED IS SUBJECTED TO A SHREDDING ACTION AS IT IS CONVEYED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |